topping-up system 中文意思是什麼
topping-up system
解釋
補充加註系統-
One advantage of this system is that almost no water is introduced into the tank apart from occasional topping up, so corrosion and scale buildup are almost totally eliminated
這個系統的優勢是幾乎沒有水進入水箱除頂上有一部分,所以不太可能發生腐蝕和結垢現象。
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